postgresql – Postgrex – 主机“xxx.xxx.xxx.xxx”没有pg_hba.

config :my_app,MyApp.Repo,adapter: Ecto.Adapters.Postgres,url: "postgres://username:password@myhost:5432/my_database",size: 20

当我的应用程序托管在Heroku上时,这工作正常,但是因为我已经将它移动到VPS,我不断收到此错误：

17:07:13.665 [info] GET /subjects
17:07:13.707 [info] Processing by MyApp.SubjectController.index/2
  Parameters: %{"format" => "html"}
  Pipelines: [:browser,:authorize]
17:07:13.951 [error] GenServer #PID<0.515.0> terminating
** (exit) %Postgrex.Error{message: nil,postgres: %{code: :invalid_authorization_specification,file: "auth.c",line: "474",message: "no pg_hba.conf entry for host "xxx.xxx.xxx.xxx",user "username",database "my_database",SSL off",pg_code: "28000",routine: "ClientAuthentication",severity: "FATAL"}}
17:07:13.970 [info] Sent 500 in 305ms
17:07:13.972 [error] #PID<0.513.0> running MyApp.Endpoint terminated
Server: xxx.xxx.xxx.xxx:80 (http)
Request: GET /subjects
** (exit) exited in: GenServer.call(#PID<0.515.0>,{:query,"SELECT s0."id",s0."name",s0."inserted_at",s0."updated_at" FROM "subjects" AS s0",[]},5000)
    ** (EXIT) %Postgrex.Error{message: nil,severity: "FATAL"}}

我也可以从Postgres GUI工具连接到数据库,所以没有任何问题.我注意到的一件事是它将我的VPS IP声明为主机而不是url中指定的主机.

这应该没关系,因为数据库完全在一个单独的主机上,但我仍然在这里尝试了解决方案：

> No pg_hba.conf entry for host
> Connect to PostgreSQL server: FATAL: no pg_hba.conf entry for host

真的很挣钱,请帮忙！

更新：这是我的pg_hba.conf：

# TYPE  DATABASE        USER            ADDRESS                 METHOD

# "local" is for Unix domain socket connections only
local   all             all                                     peer
# IPv4 local connections:
host    all             all             127.0.0.1/32            md5
# IPv6 local connections:
host    all             all             ::1/128                 md5
# Allow replication connections from localhost,by a user with the
# replication privilege.
#local   replication     postgres                                peer
#host    replication     postgres        127.0.0.1/32            md5
#host    replication     postgres        ::1/128                 md5
host    all             all             0.0.0.0/0               md5